Wheel dresser



Jan. 5, 1954 W H KOCH 2,664,875

WHEEL DRESSER Filed Oct. 15, 1949 l 3 /9 20 2 /o i 5 3 l |i||\||'"' c/fQ.ff/ffii ////1u (frbt.

Invenor @KM-@MMM Patented Jan. 5, 1954 WHEEL DRESSER William H. Koch,Evansville, Ind., assignor to Indian Archery & Toy Corporation,Evansville, Ind., a corporation of Indiana Application October 15, 1949,Serial No. 121,596

6 Claims. l

This invention relates to wheel dressing tools, and has particular butnot limited reference to tools for the dressing of grinding wheels asused in connection with small, power operated hand tools.

The great majority of tools of this type have heretofore been ofconsiderable bulk or extremely small, in either of which event the toolis awkward and hard to h-andle or control, while simultaneouslycontrolling the power tool and associated grinding wheel. The presentdressing tool, while not being of great size is so proportioned andconstructed that it is very easy to handle while simultaneouslyproviding a rest or support for the power tool. By such means, therelative positions of the dressing tool and the grinding wheel areeasily controlled and regulated by the operator.

Thus, the object of the invention is to simplify the construction aswell as the means and mode oi operation of tools as disclosed herein,whereby such tools may not only be economically manufactured, but -willbe more eilicient and accurate in use, adaptable to a wide variety ofgrinding tools, having relatively few parts and be unlikely to get outof repair.

It is a further object of the invention to provide such a tool which byreason of its relatively small size, simplicity and less costlyconstruction may be easily acquired and used by individual power toolowners.

Another object of the invention is to enable wheel dressing by use of asmall, hand held tool in which the pressure oi the dressing element isunder the continuous control of the operator.

A further object of the invention is to provide a mounting for thedressing element whereby it is securely held against dislodgment, yet isreadily accessible for removal.

Still another object of the invention is to prolong the useful life ofthe dressingr element by providing the element with a plurality ciselectively or successively usable cutting edges.

A still further object of the invention is to utilize a cube-shapeddressing element to obtain a plurality of selectively or successivelyusable cutting edges, a further object in this connection being toutilize the cube-like shape i the dressing element to obtain a securemounting therefor.

A further object of the invention is to provide in a tool of thecharacter described means for supporting the power tool to therebymaintain the relative lpositions of the power and dressing tools withinpredetermined limits.

A. further object of the invention is to provide a tool possessing theadvantageous structural features, the inherent meritoriouscharacteristics and the mode of operation herein mentioned.

With the above primary and other incidental objects in view as will morefully appear in the specification, the invention intended to bepronecessarily the only form of embodiment of the invention,

Fig. 1 is a top plan view of la dressing tool in accordance with theinstant invention;

Fig. 2 is a side view of the tool;

Fig. 3 is a view similar to Fig. 2, the tool being shown in longitudinalsection;

Fig. 4 is a front end view of the tool;

Fig. 5 is a view in cross section, taken substantially along the line 55 of Fig. 1;

Fig. 6 is a ydetail view, in top plan, of the dressing element carryingslide; and

Fig. 7 is a fragmentary perspective view of the top of the dressingelement carrying slide with the dressing element removed.

Fig. 8 is a fragmentary View, in perspective, of the tool, showing onemanner of use thereof.

Like parts are indicated by similar characters ofreierence throughoutthe several views.

Referring to the drawings, according to the illustrative embodiment ofthe invention, a wheel dressing tool comprises an elongated bar-likebody I0 presenting at one end thereof a notch I I with tapering sidesand a rounded bottom. In the region of the notch II, fthe body I 0 has alesser thickness than over the remainder of its length. In the portionof greater thickness, one side of the body is channeled and undercut todene a longitudinal slideway I2 which at its one end opens onto theportion of lesser thickness.

Mounted in the slideway I 2 is a slide I 3, formed in a mannercomplementary to the slideway and having a short groove I 4 in itsunderside. A screw |15 is passed from the underside of the body I IIinto the slideway I2 4and projects into the groove I4. The screw I5accordingly acts as an abutment, defining limits of reciprocable motionfor the slide I3.

The upper or left hand end of the slide I3 is formed with an enlargedhead portion I6 in which is formed a recess or socket Il opening throughthe outer end of the head I6. In a transverse direction it opens throughthe top side only of the head, there being dened at the bottom of therecess a land I8. The configuration of the recess is such as to receivea cubeshaped dressing element I9, permitting an edge of the element toprotrude toward the notch II.

The head I6 is provided with transversely projecting marginal iianges 20disposed on the side of the head opposite the land I8. Such flanges areslightly longer than the head I6 extending therebeyond to provide apairof inturned prongs 3 2| which overlie the dressing element I9. Thus,the recess I'I is of frusto-cubical shape, the frustrum occurring at apoint to define the inturned prongs 2| which prevent outwardf motion orVthe element.

The dressing element I9 is inserted in the,

recess I'I from the topside of the head I6l and. seats upon the land I8in complementary engaging relationship with the side walls of the recessand with the prongs, 2I'., Withdrawal of. the element through the top ofthe recess is. normally prevented by a retaining plate 22 fastened tothe body of the slide I3 and to the head I6 thereof by respective screws23 and 2li I'Phe plate 22 is of such length as to project in partlyoverlying relation to the-recess ITI and therefore to the element I9whenit is in placewithin the recess.

AsV shown in Fig, 1, the construction and arrangement of parts is suchasto place the dressing element I9 in line` with the. notch II, theprotruding edge ofthe element ylying in a plane at right anglesv tothelongitudinal axis of the body I0. Further, the element is shiftable, byreason oftheA mountingofs the slidel I3, toward and from theY notch IVI-Referring to Fig. 8, in the use of the tool, the notch I-I, presents ameans to guide and position a spindle 25 which isheld at right angles tothetool. The grinding wheel 26 on the end-ofl the spindle then lies inparallel, adjacent relationship tothe-body I-in an overlying positionwith respect-to` the` cutting edge of element I9. The-body.V I0v-and itsassociated parts are adapted tobe heldL in the hand ofv the operatorwho=useshis thumb to advance the dressing element I9 into-contact withthe wheel, such motion being of course, accompanied by rotation of theWheel to effect the desired dressing thereof., The retainer-plate 22 andhead I6 present a suitable abutment against whichthe operator may pressto urge the dressing element against the wheel.

The dressing element I9: isf, made of a hard material suitable for itsfunction, for example Norbide; By reasonof: itscubic shape, the elementpresents twelve usable cutting edges. When one edge becomes worn,retainer plate 22 is removed, the dressingelement I9 islifted fromrecess II, turned to a new. position of adjustment and reinserted. inthe recess, the retainer plate being then replaced.

From the above descriptionit will be` apparent that there is thusprovided a device of the char-` acter described possessing the:particular features of advantage before enumeratedL as desir-v able, butwhich obviously is susceptible of modication in its form, proportions,detailconstruction and arrangement ofparts without departing from theprinciple involved or sacrificing any of its advantages.

While in order to comply with the statute the invention has beendescribedin language more or less specific as tostructural features, itisY tobeunderstoodthat the invention is not limited to the specificfeatures shown, but that the means andconstruction herein disclosed`comprise but one ofY several modes of putting4 the, Y invention, intoeffect.

Having thus describedimy invention, I claim:

1. A tool. for wheel dressing, including a rec tangular bar to beheldrthe hand and having a guide notchat ong end. thereof, a longituthe endthereof adjacent said notch, an angular recess in said head portion, adressing element received, insaid recess andI formed with a protrudingcutting edge underlying said notch in a longitudinal sense, and aretainer plate removably fastened to said slide and partly overlyingsaid dressing element, said retainer plate and saidl enlarged headpresenting an abutment for the finger operation of said slide to urgesaid dressing element toward said notch.

2. A: toolv according to claim 1, characterized in that said dressingelement is formed as a cube with each edge thereof representing aselectivelyusable cutting edge, the retainer plate being removed and thedressing element being readjustedto-present a new` cutting edge as eachpreviously used edge becomes Worn.

3. A tool for wheel dressing, including a rectangular body to be held inthe hand, a notch at one end thereof to receive and position a wheelspindlein angular relation thereto, a supportV for a dressing elementmounted on said body for limited sliding motion toward and from saidnotch, said support being manipulative by the fingers of the operator, acube-shaped dressing element carried by said support in a positionunderlyingl said notch in a longitudinal sense, the edges of saidcutting element representing cutting surfaces, and a dressing'elementretainer plate on saidy support and removable therefrom to allowadjusting said element relatively to said support for successive use ofthe several edges of said element.

4; Atool according-to claim 3, characterized in that said last namedmeans includes a mounting for said dressingelement utilizing the cubeshape of said element for. a secure gripping thereof.

5; A, tool, for. wheel dressing, including a rectangular body to be heldin the hand and presenting at one end thereof a locating notch toreceive and position. a spindle and associated wheel in operativerelation thereto, a slide mounted. on the body for reciprocatory motionY longitudinally ofr the body under hand control,

a lamination on the side of said slide adjacent one end thereofpresenting a socket frusto-cubical, inshape, and a cube-shaped dressingelement' received in said socket with one edge thereof protruding fromthe socket and beyond the end of said slide, in linewith said notch,said slide being movable relative to said body toward said notch underinfluence of pressure applied by a finger or thumb of the hand.

6. A tool Iaccording to claim 5, characterized by a retainer mounted onthe side of said slide in overlying relation to said socket, saidretainer being removable for readjustment of said dressing element tobring the twelve edges thereof successively into protruding position.

WILLIAM H. KOCH.

References Cited' in the file of this patent UNITED STATES PATENTSNumber Name Date 769,945 Howland Sept. 13, 1904 1,112,461; Long Oct. 6,1914 2,297,750 Dinhofer Oct. 6, 1942 2,355,324- Palmer Aug. 8, 19442,378,094 Nunes-Vez` June 12 1945 2,468,921 Bruce May 3, 1949 FOREIGN'PATENTS Number. Country Date 465,537 Great Britain May-10, 1937

